About Thudbusters for road use in general, I've found the ST version better than the LT since the LT has too much front-back motion particularly before it gets into the vertical phase of the arc. If the ST version feels too unresponsive a softer elastomer can be used than the one specified based on rider weight. Whereas going for a firm elastomer with the LT means the travel is too horizontal since it doesn't reach the latter part of the arc.